Change Find in Files to allow searching any number of files in a project, instead of the current limitation of 1,000 files per directory/folder

[sjharb]

Describe the project you are working on

A large project with more than 1000 files in a single directory/folder.

Describe the problem or limitation you are having in your project

Find in files functionality currently only searches for 1000 files per directory/folder.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

By allowing find in files to search for more than 1000 files per directory/folder I will be able to use the Godot Editor to search my large project again.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

Preferred Solution:
Modify find_in_files.cpp to allow for any number of files to be searched.
If the search is takes greater than X seconds (where X is for example 5 seconds), Godot Editor should ask the user via a pop-up or the search window if they would like to continue with the 'long running search'. Continue/Cancel.

Other Solution:
Add a setting in the Editor Settings to allow the user to change the 'find in files' time or file number limit.
Modify find_in_files.cpp to use the editor value instead of the currently hardcoded 1000 loop limit.

If this enhancement will not be used often, can it be worked around with a few lines of script?

No, this is a hardcoded limitation in find_in_files.cpp.

Is there a reason why this should be core and not an add-on in the asset library?

Searching the project codebase is essential especially for large project that contain more than 1000 files in a single directory/folder.

[sjharb]

Issue: godotengine/godot#52789